This unit is designed for installation in standard double hung windows with actual opening widths from 27” to 39”.
The top and bottom window sashes must open sufficiently to allow a clear vertical opening of 16” from the bottom of the upper sash to the inside sill.

All supporting parts should be secured to firm wood, masonry, vinyl, fiberglass, or metal.
This product is a window air conditioner. As such, a standard single-hung or double-hung window is required for proper installation. Non-window installations, including using sleeves or wall openings, and other installation methods are not recommended.